Consider a bright point light source located 1 m from a square opening with an area of 1 m 2. Light passing through the opening illuminates an area of 4 m2 on a wall 2 m from the opening. (a) Find the...

Consider a bright point light source located 1 m from a square opening with an area of 1 m 2. Light passing through the opening illuminates an area of 4 m2 on a wall 2 m from the opening. (a) Find the areas that would be illuminated if the wall were moved to distances of 3 m, 5 m, and 10 m from the opening. (b) How can the same amount of light illuminate more area as the wall is moved farther away?